Quantitative Aptitude - Arithmetic Ability Questions

If sinA = x, then x is equal to

The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correct mean is:

In a committee there are 15 members. If two members whose ages are 45 years and 55 years are replaced by the two new members, then average age of 15 members is increased by 2 years. What is the average age (in years) of the new members?

A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be

A dealer is selling an article at a discount of 5% on the Marked price. If the Marked price is 12% above the cost price and the article was sold for Rs. 532 then the cost price is (in Rs.)

Selling price of an article is Rs 494 and discount of 5% is offered. What is the marked price (in Rs)?

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?

In the following question, select the odd word from the given alternatives.